HP 8662A Service Manual

8662AOptionH17
08662-92035
Page 3 of 15
On page 3-14, in Figure 3-4. Signal Generator Features, under MODULATION INPUT, add
the following:
Special AM Mode below 150 kHz is selected by Special Function 50. Maximum AM
rate at 20 kHz carrier is approximately 1.5 kHz. The Modulation Input requires
approximately 7.6 mV RMS per 1 % AM depth produced.
On page 3-31, in Table 3-4, HP-IB Message Reference Table, change the first sentence of the
Clear Message Response to read:
Sets output to 100 MHz at -30 dBm with Sweep and Special Functions off and Special
AM Mode on.
On page 3-43, in Section 3-53, under Modulation, replace the table in step 2 with the
following:
Source
Code
48
146
148
154
162
164
170
176
178
180
218
234
242
244
Modulation Modes
Internal (Rate)
FM (IkHz)
AM (IkHz)
FM (IkHz)
FM (400 Hz)
AM (400 Hz)
FM (400 Hz)
OFF
FM (IkHz)
FM (400 Hz)
External (Coupling)
Special AM Mode only (ac)
AM(ac)
AM(ac)
OFF
FM (ac)
AM(ac)
AM(dc)
AM(dc)
FM(dc)
AM (dc)
Source Codes of 128 and above enable Special Function 51 to turn off the Special AM Mode and
allow normal 8662A operation above 150 kHz. Source Codes below 128 enable Special Function 50.
To combine Special AM Mode with other modulation modes, subtract 128 from the desired
modulation mode Source Code above. (Example: to use Special AM Mode concurrently with
Internal FM at 1 kHz, the Source Code is 146-128=18).
Copyright 1983 - HEWLETT-PACKARD COMPANY - Spokane Division
24001 E. Mission Ave, Liberty Lake, WA 99019-9599 U.S.A.

HP 8662A Specifications

General

Brand	HP
Model	8662A
Category	Portable Generator
Language	English